As Shion Yoshino enters high school, his sole focus is finding a boyfriend. Leveraging his exceptional athletic skills, he attempts to find the love of his life within the various sports clubs at Midorigaoka High School, only to quit when he fails to find a suitable candidate. Under increasing pressure from his former middle school friends to achieve his goal, Shion turns to the Film Club, hoping to locate a cute boy there. Shion's superficial reason for joining is quickly rebuked by the retiring club vice president, Rei Inaba, who claims it would be a complete waste of time. Ignoring his senior's warning, Shion presses on despite his apathy toward film production; however, he soon becomes disheartened when no one gives him the attention he desperately seeks. Noticing this, Inaba chides him for his naivety before making a shocking proposition: he will become the boyfriend Shion has been desperately looking for. Although Shion's elation leads him to agree to the impromptu proposal, those aware of Inaba's true nature cannot help but warn the first-year student to end the relationship before it gets serious. Unwilling to let his chance at romance go to waste, Shion decides that he must be the one to change Inaba's personality for the better—even if it seems impossible.